Effect of long-term K+ deprivation on biomass accumulation in Rht-B1a,Rht-D1a (WT) and Rht-B1b,Rht-D1b (DD) near-isogenic lines of T. aestivum. Plants were grown
from day 12 until day 28 in medium with or without KCl 1mM. (A and C) Total biomass accumulation in Maringa and April Bearded cultivars, respectively. (B and D) Relative
effect of K+ deprivation, estimated as the quotient between the values recorded in the absence and the presence of K+ on total biomass accumulation for those cultivars,
respectively. Data in (A) and (B) correspond to the mean obtained in four experiments (n = 14) and three experiments (n = 12) for (C) and (D). Error bars correspond to SE.
Different letters indicate significant different values (P < 0.05). The *** symbol denotes differences between genotypes at P < 0.001.